Coordinate input instrument



FIG. 1 is a bottom front right perspective view of a coordinate input instrument showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side elevation view thereof, wherein the left side elevation view is a mirror image of the right side elevation view;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a bottom front right perspective view of an alternative embodiment of the coordinate input instrument shown in FIG. 1;

FIG. 8 is a front elevation view thereof;

FIG. 9 is a right side elevation view thereof, wherein the left side elevation view is a mirror image of the right side elevation view;

FIG. 10 is a rear elevation view thereof;

FIG. 11 is a top plan view thereof; and,

FIG. 12 is a bottom plan view thereof.

The broken lines shown in FIGS. 7-12 illustrate environmental subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a coordinate input instrument, as shown and described. 